This week’s articles highlight the role of aging foam cells in atherosclerosis, the importance of metabolic rewiring in T cell function, the regulation of metabolic flux in yeast, superresolution imaging of endoplasmic reticulum structure, and how a noncoding RNA recruits X chromosomes into silencing domains.

About The Cover

Online Cover This week features a Research Article that shows that light conducted through plant tissues activates the photoreceptor phyB in the roots. The image depicts light traveling through a plant stem to the root. [Image: MRINAL NAG/skydie/themacx/iStockphoto.com adapted by C. Bickel/Science]